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eve.hpp

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00001 /*
00002     Copyright 2005-2007 Adobe Systems Incorporated
00003     Distributed under the MIT License (see accompanying file LICENSE_1_0_0.txt
00004     or a copy at http://stlab.adobe.com/licenses.html)
00005 */
00006 
00007 /*************************************************************************************************/
00008 
00009 #ifndef ADOBE_EVE_HPP
00010 #define ADOBE_EVE_HPP
00011 
00012 #include <adobe/config.hpp>
00013 
00014 #include <utility>
00015 
00016 #include <boost/noncopyable.hpp>
00017 
00018 #include <adobe/forest.hpp>
00019 #include <adobe/extents.hpp>
00020 #include <adobe/poly_placeable.hpp>
00021 #include <adobe/layout_attributes.hpp>
00022 
00023 /*************************************************************************************************/
00024 
00025 namespace adobe {
00026 namespace implementation {
00027 
00028 /*************************************************************************************************/
00029 
00030 struct view_proxy_t;
00031 
00032 /*************************************************************************************************/
00033 
00034 } // namespace implementation
00035 } // namespace adobe
00036 
00037 /*************************************************************************************************/
00038 
00039 #if !defined(ADOBE_NO_DOCUMENTATION)
00040 namespace boost {
00041 namespace detail {
00042     template <>
00043     struct is_pod_impl<adobe::implementation::view_proxy_t>
00044     {
00045         BOOST_STATIC_CONSTANT(bool, value = true);
00046     };
00047 }
00048 }
00049 #endif
00050 
00051 /*************************************************************************************************/
00052 
00053 namespace adobe {
00054 
00055 /*************************************************************************************************/
00056 
00057 
00065 class eve_t
00066 #if !defined(ADOBE_NO_DOCUMENTATION)
00067     : boost::noncopyable, public extents_slices_t, public layout_attributes_placement_t
00068 #endif
00069 {
00070  public:
00071 
00072 #if !defined(ADOBE_NO_DOCUMENTATION)
00073     typedef forest<implementation::view_proxy_t> proxy_tree_t;
00074     typedef proxy_tree_t::iterator               iterator;
00075 #endif
00076 
00077 
00078 
00079 
00085     enum evaluate_options_t
00086     {
00087         evaluate_nested,    
00090         evaluate_flat       
00093     };
00094     
00095 /*
00096     REVISIT (sparent) : I'm just starting a long cleanup of the Eve API - the steps should include
00097     the following:
00098     
00099     * eliminate the container default proc in favor of an inital extents setting.
00100     * rename calculate to calculate_horizontal - all calculation passes are optional (initial should
00101         often suffice).
00102 */
00103 
00104 
00105 #if !defined(ADOBE_NO_DOCUMENTATION)
00106     explicit eve_t();
00107     ~eve_t();
00108 #endif
00109 
00192     iterator add_placeable( iterator parent,
00193                             const layout_attributes_t&  initial,
00194                             bool                        is_container_type,
00195                             poly_placeable_t&           placeable, 
00196                             bool                        reverse=false);
00197 
00202     void set_visible(iterator, bool);
00203 
00204 
00216     std::pair<int, int> evaluate(evaluate_options_t options, int width = 0, int height = 0);
00217 
00218 
00235     std::pair<int, int> adjust(evaluate_options_t options, int width, int height);
00236   
00237  private:
00238     friend struct implementation::view_proxy_t;
00239 
00240     class implementation_t;
00241     implementation_t* object_m;
00242 };
00243 
00244 
00245 /*************************************************************************************************/
00246 
00247 void set_margin(layout_attributes_t& container, int x);
00248 
00249 /*************************************************************************************************/
00250 
00251 } // namespace adobe
00252 
00253 /*************************************************************************************************/
00254 
00255 #endif
00256 
00257 /*************************************************************************************************/
00258

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